TY - BOOK AU - Refugia, Robinson L. TI - Positive and negative impact of modern technology on the performance of ALS learners / U1 - TH 372.3 R25p 2020 PY - 2020/// CY - Polytechnic College of La Union : PB - [s.n.], KW - Programmed instruction. N1 - Bibliography: pages 124-127 ER -